Have you discovered surprise/secret siblings?

Have you discovered surprise/secret siblings?

This process led me to the discovery of two previously unknown half sisters. Do you have a similar story? As a graduate student in psychology, I have embarked on a formal study on the issue. If you have an experience to share please do so by participating in this secure, anonymous, and confidential survey. Your unique story might lead to new discoveries:)https://www.zoomerang.com/Survey/WEB22EUATQ8UEC/